Hello, i am now 6 days late for my period but i did a test on the 4th day late of period and the test came up negative but could i still be pregnant?

Can retest next wk: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon.